JLG 15/20MSP Service Manual - Manual (Page 158)

SECTION 6 - TROUBLESHOOTING
6-38 – JLG Lift – 3121231
Codes (300 - 399) Traction Control Module - Fault Condition
Check For These Obvious Conditions First:
• Damage to Traction Control Module wiring harness.
• Confirm that the static ground strap attached under base frame is secure and undamaged.
Table 6-42. Codes (300 - 399) Traction Control Module - Fault Condition
STEP ACTION SPEC YES NO
1. Recycle machine power 5 times allowing a 10 second interval between
each power recycle. Does fault clear? — Done Go to Step 2
2. Is a code number displaying on the Ground Control Station? Code - 316 Go to Step 3 Replace
Traction Control
Module
Code - 325 Go to Step 5 —
3. Confirm that both installed batteries are 12 Volt DC. 12V DC Go to Step 4 Replace with proper
Batteries
4. Check battery voltage while charger is operating. Is voltage within specifi-
cation? Maximum of
31 Volts DC
Replace
Traction Control
Module
Repair or Replace
Battery Charger
5. Check for short in harness wires from Ground Control Station connector P5
to Traction Module (round din plug).
Note: This harness contains 6 wires only 3 are used, (See Figure 6-7.) Elec-
trical Diagram. — Repair or Replace
Wiring
—